// onjava/FilledCollection.java

// (c)2016 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://mindviewinc.com/Books/OnJava/ for more book information.

// A Collection filled with data using a generator object

package onjava;

import java.util.*;

import java.util.function.*;

public class FilledCollection<T> extends ArrayList<T> {

public FilledCollection(Supplier<T> gen, int quantity) {

for(int i = 0; i < quantity; i++)

add(gen.get());

}

// A generic convenience method:

public static <T> FilledCollection<T>

list(Supplier<T> gen, int quantity) {

return new FilledCollection<>(gen, quantity);

}

}